87403801 has 3 divisors (see below), whose sum is σ = 87413151. Its totient is φ = 87394452.

The previous prime is 87403763. The next prime is 87403831. The reversal of 87403801 is 10830478.

It is a happy number.

The square root of 87403801 is 9349.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 75707401 + 11696400 = 8701^2 + 3420^2 .

It is not a de Polignac number, because 87403801 - 2¹⁷ = 87272729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87403831) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 4675 + ... + 14023.

It is an arithmetic number, because the mean of its divisors is an integer number (29137717).

Almost surely, 2^87403801 is an apocalyptic number.

87403801 is the 9349-th square number.

87403801 is the 4675-th centered octagonal number.

It is an amenable number.

87403801 is a deficient number, since it is larger than the sum of its proper divisors (9350).

87403801 is an frugal number, since it uses more digits than its factorization.

87403801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18698 (or 9349 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 31.

The cubic root of 87403801 is about 443.7892450644.

The spelling of 87403801 in words is "eighty-seven million, four hundred three thousand, eight hundred one".